More
records fall
Global
temperatures leap higher in January, smashing records
Global
temperatures spiked higher in January, setting records, international
agencies say. Photo:
Leigh Henningham
16
February, 2016
This
year has got off to a scorching start, with global temperatures
marching to new highs as a giant El Nino rode on the back of
creeping climate change, data from Japan and the US show.
Just
a month after the
world notched its hottest year on record,
January's global land and sea-surface temperatures were
0.52 degrees above the average for 1981-2010, Japan's Meteorological
Agency reported.
The
departure from the norm easily eclipsed the previous record of 0.29
degrees shared equally by 2002, 2007 and 2015, the agency said.
Temperatures
in January are rising at the rate of about 0.75 degrees per
century, the agency said.
While
more data will be released in coming days by the National Oceanic and
Atmospheric Administration, a chart from fellow US agency NASA (see
below) also shows January's temperature spiking higher.
The
data indicates last month had the biggest increase over the
previous record for any month in more than a century of records.
January
also had the largest anomaly – or departure from the
long-term norm – for any month on record, Stefan Rahmstorf, a
researcher from Germany's Potsdam Institute of Climate
Impact Research and a visiting professorial fellow at the University
of New South Wales, says.
"The
record is helped along a bit by El Nino, but most of it - more
than 80 per cent - is due to human-caused global warming,"
Dr Rahmstorf said.
"A
strong El Nino event can elevate the monthly global
temperature by up to 0.2 degrees, but this January is a whopping
1.1 degrees warmer than the average January during the baseline
period of 1951-1980."
During El Nino years, the usual westward-blowing trade winds stall or reverse, lowering the rate the ocean absorbs the excess heat being trapped in the atmosphere by rising levels of greenhouse gases.
During El Nino years, the usual westward-blowing trade winds stall or reverse, lowering the rate the ocean absorbs the excess heat being trapped in the atmosphere by rising levels of greenhouse gases.
Global
annual temperature records were broken in 2014 and then again in
2015, with the UK Met Office forecasting 2016 may lift the
temperature bar again.
"This
sequence of new records every few years - and now even two in a row -
reflects the on-going rapid global warming trend," Dr Rahmstorf
said.
"As
the El Nino event winds down over the coming months we can
expect somewhat lower global temperatures again for a while, but the
global warming trend will continue until we phase out fossil fuels,"
he said.
Research
cut
The
latest record-hot month comes as Australia's premier scientific
organisation, the CSIRO, has announced plans
to axe 110 of its climate monitoring and modelling staff.
The
cuts are part of a wider reorganisation that will slice 350 jobs
before later recruitment in other areas restores the loses.
The
move against climate research has been denounced
by about 3000 scientists from
almost 60 nations, who have signed a petition sent to the Turnbull
government. They warn that Australia risks losing world-leading
talent and will undermine the ability to observe the changes of
the world's climate, particularly in the southern hemisphere.
CSIRO's
chief executive Larry Marshall has said the two climate units
targeted for deep cuts will eventually increase staff but
numbers will be half current levels. The freed-up resources will
be used for other research priorities including studying
Australia's adaptation needs for the inevitable climate impacts
to come as the country warms.
For
Australia, mean temperatures were 0.52 degrees above the 1961-90
level used by the Bureau of Meteorology as its yardstick.
All
states and the Northern Territory recorded warmer than average mean
temperatures, with Tasmania recording its second-warmest
January on record, the
bureau said.
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